Home / 8,266,998.20-12,400,842.90-4,427,209.40

Finding the Fourth Proportional to 8,266,998.20, 12,400,842.90 and 4,427,209.40

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Solution

The fourth proportional to 8,266,998.20, 12,400,842.90 and 4,427,209.40 is: 6,640,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266,998.20 : 12,400,842.90 = 4,427,209.40 : x
  2. Step 2: Convert to fraction form
    8,266,998.20/12,400,842.90 = 4,427,209.40/x
  3. Step 3: Cross multiply
    8,266,998.20x = 12,400,842.90 × 4,427,209.40
  4. Step 4: Simplify right side
    8,266,998.20x = 54,901,128,254,803.27
  5. Step 5: Solve for x
    x = 54,901,128,254,803.27/8,266,998.20
  6. Step 6: Final answer
    x = 6,640,999.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.